/*************************************************************************/
/*  listener.h                                                           */
/*************************************************************************/
/*                       This file is part of:                           */
/*                           GODOT ENGINE                                */
/*                      https://godotengine.org                          */
/*************************************************************************/
/* Copyright (c) 2007-2019 Juan Linietsky, Ariel Manzur.                 */
/* Copyright (c) 2014-2019 Godot Engine contributors (cf. AUTHORS.md)    */
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/* "Software"), to deal in the Software without restriction, including   */
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/* distribute, sublicense, and/or sell copies of the Software, and to    */
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/*************************************************************************/

#ifndef LISTENER_H
#define LISTENER_H

#include "scene/3d/spatial.h"
#include "scene/main/viewport.h"

class Listener : public Spatial {

	GDCLASS(Listener, Spatial);

private:
	bool force_change;
	bool current;

	RID scenario_id;

	virtual bool _can_gizmo_scale() const;
	virtual RES _get_gizmo_geometry() const;

	friend class Viewport;
	void _update_audio_listener_state();

protected:
	void _update_listener();
	virtual void _request_listener_update();

	bool _set(const StringName &p_name, const Variant &p_value);
	bool _get(const StringName &p_name, Variant &r_ret) const;
	void _get_property_list(List<PropertyInfo> *p_list) const;
	void _notification(int p_what);

	static void _bind_methods();

public:
	void make_current();
	void clear_current();
	bool is_current() const;

	virtual Transform get_listener_transform() const;

	void set_visible_layers(uint32_t p_layers);
	uint32_t get_visible_layers() const;

	Listener();
	~Listener();
};

#endif
